1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Ad libitum [116K]
3 years ago
13

In the formula 1/3 π r*2 •h, if r is doubled and h is divided by 3, what is the ratio of new value of the formula to the origina

l value?
Mathematics
1 answer:
Maru [420]3 years ago
3 0

\bf \textit{volume of a cone}\\\\ V=\cfrac{\pi r^2 h}{3}~~ \begin{cases} r=radius\\ h=height\\[-0.5em] \hrulefill\\ r=\stackrel{doubled}{2r}\\ h=\stackrel{\textit{divided by 3}}{\frac{h}{3}} \end{cases}\implies V=\cfrac{\pi (2r)^2\left( \frac{h}{3} \right)}{3} \\\\\\ V=\cfrac{\pi (2^2r^2)\left( \frac{h}{3} \right)}{3}\implies V=\cfrac{~~\frac{4\pi r^2 h}{3}~~}{3}\implies V=\cfrac{4\pi r^2 h}{3\cdot 3}\implies \stackrel{\frac{4}{3}\textit{ of the original}}{V=\cfrac{4}{3}\cdot \cfrac{\pi r^2 h}{3}}

You might be interested in
Evaluate the expression -36/-9
Shtirlitz [24]
The answer would be 4
(Positive 4 btw)
7 0
3 years ago
I’ll give brainliest!! please help and answer correctly! plsss answer quick
zaharov [31]

Answer:

the motion of the object will stay the same

Step-by-step explanation:

7 0
3 years ago
I really need help with this no sum answers or else. You will get 20 points and brain list
nordsb [41]

Answer:

if their asking for % then this is the answers

1. 41% of 900 is 369

2. 24%

3. 46%

4. 23%

5. 95%

6. 23%

7. 75%

8. 22%

9. 92%

10. 45%

5 0
3 years ago
Read 2 more answers
How many cubic centimeters of water can this paper cone cup hold?
weeeeeb [17]

Im probably wrong but 48π cubic centimeters

4 0
3 years ago
An unknown number y is 20 more than an unknown number x. The number y is also x less than 2. The equations to find x and y are s
Scorpion4ik [409]
Add the equations to eliminate x.
4 0
3 years ago
Read 2 more answers
Other questions:
  • Find equation where line passes through (7,8) and perpendicular to line y=8
    13·1 answer
  • PLEASE HELP ASAP
    14·1 answer
  • Star QuestionMrs Jenkins is organising a charity raffle.She sells 300 tickets for £3 each.The probability that someone wins a pr
    11·1 answer
  • A fishing boat was out to sea for 6 months and traveled a total of 8,578 miles. In the first month, the boat traveled 659 miles.
    10·2 answers
  • Which of the following equations represents the data in the table​
    6·2 answers
  • What’s an explanation function ?
    13·1 answer
  • PLEASE HELP! I WILL GIVE YOU BRAINLIEST! Peter walked around a park three times. How many miles did he walk?
    6·1 answer
  • jenna has a piece of paper that is 84 square inches in area. it is 10 1/2 inches long. what is the width of the piece of paper i
    13·2 answers
  • Fill in the blanks to make the equation true.<br><br> 9/4 × 1 = 9/4 × ? = 45/20
    13·2 answers
  • How do you know that 1.026÷5.051≠0.02 without doing the​ division?
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!